To make more bumps (narrower), change x to 5x : y =īy adding +1,the curve moves up the screen: Subtracting 1 from x doesn't quite move the edge of the bump to 0. Changing it to 0.5, we get flatter bumps:Ĭhanging x to (x-1) slides the graph to the right: y = The number 3 controls the height of the bumps. Polar Implicit: r ^ 2 - sin(5t) = 3cos(t) ^ 2īumpy Function - Sample Mathematical Investigation Here is the graph of : y = If you wish, change the exact location of the tangent point by typing in the box. Here are some examples:ĭraw a Circle Simply graph this formula: (x-2)^2 + (y-4)^2 = 9ĭraw a Tangent Click the button. It can do these operations without the user understanding any higher mathematics. Higher Mathematics Graphmatica can perform calculus operations, as well as drawing parametric and polar graphs. You might also want to change the range on the axes manually, by selecting View / Grid Range, and typing the limits:īox Zoom To zoom in a specific region, highlight the area with the mouse, then click the button. Grid Range You can or to see bigger or smaller areas. Select Options / Graph Paper, and change the, as well as the Graph Paper (Grid and Background Color) The standard colors and grid settings are not very nice - you probably want to change them Click and then click where the text should appear Copy To copy the graph into a Word document: click the button, or select Edit / Copy Graphs to BMP change to a Word document and Paste the picture in you might want to resize the graph, as it will be quite large. Labels You can type the formulas next to the graphs by adding an Annotation : Select Edit / Annotation, or press Ctrl-A Type the formula or name or whatever you want. Open the list, select a formula, and press to redraw the graph. Redraw a Graph All the formulas are stored in a list. Erasing To erase a graph: click on the graph, so the formula appears in the formula box click the buttonĮrase All Use the Clear Screen button to erase all the graphs. You might want to change the colors: open Options/Graph Paper/Colors, and change the colors of Graph 1, Graph 2, etc. The graph below shows 3 graphs: y = sin xĮach time you type a new formula and press, the graph appears.Ĭolors Graphmatica chooses a new color for each graph.
More Graphs You can draw many curves on the graph at the same time. Use parentheses ( ) for complex fractions For example: Notation Graphmatica uses typical computer notation: Multiplication : 4 * x It can be downloaded from Drawing graphs is easy - type a formula in the box at the top, and press. Graphmatica for Math Graphs Graphmatica is a computer program for drawing mathematical graphs.
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